JP2019536895A - 鋼板表面処理用溶液組成物及びこれを用いて表面処理された鋼板 - Google Patents
鋼板表面処理用溶液組成物及びこれを用いて表面処理された鋼板 Download PDFInfo
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- JP2019536895A JP2019536895A JP2019516601A JP2019516601A JP2019536895A JP 2019536895 A JP2019536895 A JP 2019536895A JP 2019516601 A JP2019516601 A JP 2019516601A JP 2019516601 A JP2019516601 A JP 2019516601A JP 2019536895 A JP2019536895 A JP 2019536895A
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- steel sheet
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- acrylate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 107
- 239000010959 steel Substances 0.000 title claims abstract description 107
- 239000000203 mixture Substances 0.000 title claims abstract description 57
- 238000004381 surface treatment Methods 0.000 title claims abstract description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 78
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000002253 acid Substances 0.000 claims abstract description 35
- 239000000178 monomer Substances 0.000 claims abstract description 30
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 27
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000077 silane Inorganic materials 0.000 claims abstract description 24
- 239000008119 colloidal silica Substances 0.000 claims abstract description 21
- 239000002904 solvent Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 11
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims description 60
- 238000005260 corrosion Methods 0.000 claims description 60
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- 239000011347 resin Substances 0.000 claims description 30
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- 239000011247 coating layer Substances 0.000 claims description 14
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
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- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 4
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- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
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- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 claims description 3
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
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- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical group CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- MABAWBWRUSBLKQ-UHFFFAOYSA-N ethenyl-tri(propan-2-yloxy)silane Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)C=C MABAWBWRUSBLKQ-UHFFFAOYSA-N 0.000 claims description 3
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- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical group CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 claims 1
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 claims 1
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Abstract
Description
これに対し、上記金属表面処理組成物100重量%に対して、上記溶剤の含有量が15重量%を超えると、粘度が過度に低くなって溶液の安定性が低下する可能性があり、コーティング後の耐食性が確保できなくなるおそれがある。
コロイダルシリカLudox HSA(固形分30%、粒子サイズ12nm、W.R.Grace&Co.−Conn.)にテトラエトキシシラン、溶剤としてエタノール、及び酸度調整剤の酢酸をそれぞれ添加した後、温度が約50℃を超えないように冷却させながら約5時間攪拌した。
その評価基準は以下のとおりである。
○:15mg/cm2/hr未満
△:15以上65mg/cm2/hr未満
×:65mg/cm2/hr以上
その評価基準は以下のとおりである。
○:3mg/cm2/hr未満
△:3以上6mg/cm2/hr未満
×:6mg/cm2/hr以上
上記表面処理鋼板の被膜密着性を評価し、その結果を下記表2に示した。
−評価方法−
横×縦150cm×75cmの大きさを有する上記表面処理鋼板表面をクロスカットガイド(cross cut guide)を用いて、横及び縦にそれぞれ100個のコマを形成するように1mm間隔で線を引き、上記100個のコマが形成された部分をエリクソン(erichsen)試験機を用いて6mmの高さに押し上げ、押し上げた部分に剥離テープ(NB−1、Ichiban社製品)を取り付けた後、剥がしてエリクソンの部分が剥離されたか否かを観察した。
その評価基準は以下のとおりである。
○:表面剥離がない場合
△:表面剥離が100個のうち1個〜3個の場合
×:表面剥離が100個のうち3個を超えた場合
Claims (19)
- サイズ5〜20nmのシリカを含む30〜50重量%のコロイダルシリカと、
3以上のアルコキシ基を含む40〜60重量%のシランと、
5〜15重量%のアクリレート系有機モノマーと、
0.01〜1重量%の酸と、
1〜15重量%の溶剤とを含む、鋼板表面処理用溶液組成物。 - 前記コロイダルシリカは、シリカの含有量が10〜45重量%である、請求項1に記載の鋼板表面処理用溶液組成物。
- 前記シランは、ビニルトリメトキシシラン、ビニルトリエトキシシラン、ビニルトリイソプロポキシシラン、3−メタクリルオキシプロピルトリメトキシシラン、2−グリシジルオキシプロピルトリメトキシシラン、2−グリシジルオキシプロピルトリエトキシシラン、2−アミノプロピルトリエトキシシラン、2−ウレイドアルキルトリエトキシシラン、テトラエトキシシラン、トリエトキシフェニルシラン、及びトリメトキシフェニルシランからなる群より少なくとも1つ選択される、請求項1に記載の鋼板表面処理用溶液組成物。
- 前記有機モノマーは、アクリル酸グレイシャル、メチルアクリレート、エチルアクリレート、ブチルアクリレート、2−エチルヘキシルアクリレート、イソブチルアクリレート、ターシャリーブチルアクリレート、ターシャリーブチルメタクリレート、ブタンジオールモノアクリレート、ラウリルアクリレート、ジメチルアミノエチルアクリレート、及びジヒドロジシクロペンタジエニルアクリレートからなる群より少なくとも1つ選択される、請求項1に記載の鋼板表面処理用溶液組成物。
- 前記酸は、酢酸、ギ酸、乳酸、グルコン酸、硫酸、硝酸、塩酸、及びフッ化水素酸からなる群より1種以上選択される、請求項1に記載の鋼板表面処理用溶液組成物。
- 前記溶剤は、メタノール、エタノール、2−プロパノール、2−メトキシプロパノール、及び2−ブトキシエタノールからなる群より少なくとも1つ選択される、請求項1に記載の鋼板表面処理用溶液組成物。
- 環状リング構造を有する有機樹脂を、0.1〜5.0重量%でさらに含む、請求項1から請求項6のいずれか一項に記載の鋼板表面処理用溶液組成物。
- 前記環状リング構造を有する有機樹脂は、ポリウレタン、アミノ変性フェノール樹脂、ポリエステル樹脂、エポキシ樹脂、及びポリビニルブチラールからなる群より選択される少なくとも1つ、又はこれら2つ以上のハイブリッド樹脂である、請求項7に記載の鋼板表面処理用溶液組成物。
- 鋼板と、
前記鋼板の少なくとも一表面上に形成された耐食性被膜層とを含み、
前記耐食性被膜層は、シリカとアルコキシシランの加水分解反応によって形成された生成物及びアクリレート系高分子を含み、
炭素(C)を25〜65重量%、シリコン(Si)を20〜70重量%、酸素(O)を1〜40重量%で含み、
シリコン(Si)と酸素の結合(Si−O結合)とシリコン(Si)と炭素(C)の結合(Si−C結合)の割合が80〜95%:5〜20%である、表面処理された鋼板。 - 前記耐食性被膜層は、請求項1から請求項6のいずれか一項に記載の鋼板表面処理用溶液組成物によって形成されたものである、請求項9に記載の表面処理された鋼板。
- 環状リング構造を有する有機樹脂を、0.1〜5.0重量%でさらに含む、請求項9に記載の表面処理された鋼板。
- 前記環状リング構造を有する有機樹脂は、ポリウレタン、アミノ変性フェノール樹脂、ポリエステル樹脂、エポキシ樹脂、及びポリビニルブチラールからなる群より選択される少なくとも1つ、又はこれら2つ以上のハイブリッド樹脂である、請求項11に記載の表面処理された鋼板。
- 前記耐食性被膜層は、0.1〜50μmの厚さを有する、請求項9に記載の表面処理された鋼板。
- 前記鋼板は耐硫酸鋼である、請求項9に記載の表面処理された鋼板。
- 前記耐硫酸鋼は、重量%で、0.2%以下(0は除く)のC、0.5%以下(0は除く)のSi、1.5%以下(0は除く)のMn、0.02%以下のS、0.02%以下のP、0.1%以下のAl、0.008%以下のN、0.1〜0.5%のCu、残部Fe及びその他の不可避不純物を含む、請求項14に記載の表面処理された鋼板。
- 前記耐硫酸鋼は、重量%で、0.03〜0.1%のCo、0.3%以下(0は除く)のNi、及び0.3%以下(0は除く)のSbのうち、少なくとも1つをさらに含む、請求項15に記載の表面処理された鋼板。
- 前記耐硫酸鋼は、重量%で、0.03〜0.1%のC、0.15〜0.35%のSi、0.5〜1.2%のMn、0.01%以下のS、0.015%以下のP、0.02〜0.06%のAl、0.004%以下のN、0.2〜0.4%のCu、残部Fe及びその他の不可避不純物を含む、請求項14に記載の表面処理された鋼板。
- 前記耐硫酸鋼は、重量%で、0.03〜0.1%のCo、0.1〜0.25%のNi、及び0.05〜0.2%のSbのうち、少なくとも1つをさらに含む、請求項17に記載の表面処理された鋼板。
- 前記耐硫酸鋼は、表面直下に厚さ100〜300nmのCu、Co、Ni、及びSbからなる群より選択された少なくとも1種の濃化層が形成されたものである、請求項16又は請求項18に記載の表面処理された鋼板。
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KR102045881B1 (ko) | 2019-11-19 |
KR20180035283A (ko) | 2018-04-06 |
EP3521381B1 (en) | 2021-11-03 |
US11939489B2 (en) | 2024-03-26 |
WO2018062912A3 (ko) | 2018-08-09 |
CN109790402A (zh) | 2019-05-21 |
EP3521381A4 (en) | 2020-03-25 |
US20200032080A1 (en) | 2020-01-30 |
WO2018062912A2 (ko) | 2018-04-05 |
EP3521381A2 (en) | 2019-08-07 |
JP6815493B2 (ja) | 2021-01-20 |
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